| Wikipedia Provides a definition, history overview, industry structure, and practical examples. |
| Trusted_Computing__FAQ An FAQ by Ross Anderson covering the what, where, who, why, and how. (June, 2003) |
| An_Architectural_Overview_of_UNIX_Network_Security A document from the Center for Information Technology, National Institutes of Health. |
| ITIL_Certification_Register International registry allows ITIL-certified professionals to list their contact information by certification and country. |
| REBOL_Amazon A REBOL interface to Amazon’s Web Services |
| Cardett_Associates The ISPF Query Tool is a SPUFI replacement. SNAPVIEW improves the readability of a DB2 Snapshot. Non-expiring trial version of their chargeable DataBase Administrator (DBA) tools are also available. |
| CVS_for_MVS Concurrent Versioning System is one of the GNU software packages from Unix, now available for z/OS. |
| DCMS__TBOX_MVS_Power_Tools A collection of testing, development and operational tools for the z/OS environment. |
| Exspans_Systems Several of their z/OS software products are offered free of charge. Covering automation, operations management and APIs for dataspaces and cross systems communications. |
| Free_stuff_from_Leonard_Woren TSO commands and other useful utilities, and replacements for existing z/OS facilities. |
| IBM\'s_Free_Downloads Tools, utilities and instructional code samples that actually work. Select Download Type of Tools/Utilities and choose a Platform/Operating System. |
| Mark\'s_MVS_Utilities REXX, TSO CLISTs and ISPF Edit Macros for z/OS. |
| Michael_J__Cleary__z/OS_Freeware Systems Programmer utilities. |
| Nigel_Pentland A number of RACF-related programs. |
| Nusantara_Freeware_by_Deru_Sudibyo Freeware collection developed by Deru Sudibyo of the Nusantara IT Pro Club in Indonesia. |
| PassTicket A demonstration program by IBM's Thierry Falissard, demonstrating the RACF PassTicket concept. |
| Planet_MVS_Freeware z/OS software written by David Alcock, including ISPF applications, ISPF edit macros, Assembler and REXX programs and utilities. |
| RACF_Sample_Utilities A dozen IBM tools, utilities and applications supplied with source code to allow customization. |
| Rob_Scott\'s_z/OS_Resources System Programmer utilities, REXX functions written in Assembler and sample batch job step termination exit. Plus MVS eXtended Information (MXI), an ISPF-based application that displays z/OS configura |
| SimoTime_Downloads z/OS COBOL, Assembler, JCL, VSAM and QSAM sample code with some fully functional utilities. |
| Taltyman_Downloads ISPF-based utilities for z/OS. |
| TASID ISPF-based monitor of z/OS. |
| TPF_Tools IBM downloadable software for the Transaction Processing Facility (TPF) mainframe operating system. |
| VM_Workshop_Tools Links to four years (1995-98) of Tool Tapes from the VM Workshop. Documentation and the software can be searched and downloaded. |
| VSE/ESA_Downloads Downloadable documents, utilities and sample code from IBM. |
| VSE/ESA_e-business_Connectors_and_Utilities Downloadable VSE/ESA software and documentation. Many are Java-based. |
| z/OS_Freeware_by_Lionel_B__Dyck Free software tools for both systems programmers and end users. |
| z/OS_UNIX_System_Services_Tools_and_Toys Performance tools, ported tools, z/OS UNIX tools and code samples from IBM and other vendors. |
| z/VM_Download_Library A 400 item IBM repository of tools, documentation and utilities from IBM and individuals outside the corporation. |
| ABIS_Training_and_Consulting Mainframe training and consulting in French, Dutch and English. With offices in Belgium and the Netherlands. |
| ACTS_Corporation z/OS and zSeries implementation, migration, upgrades, performance, tuning and capacity planning. Unix system administration for z/OS Unix System Services, mainframe and other Linux, AIX, HP-UX and Sol |
| Ajilon_Learning Technical computing training, including VSE, z/OS Unix System Services, and both IBM and non-IBM mainframe systems software. Computer-based training, competency assessment and classroom courses. |
| Alicomp Mainframe (z/OS, z/VM, VSE/ESA and zLinux) and open systems data center outsourcing services, including disaster recovery and business continuity with an emphasis on hospital and insurance organizatio |
| Arcati Mark Lillycrop's UK-based company offers IT research, writing and marketing services, specializing in business continuity, security, service management, storage and mainframe data center strategy in E |
| Barnett_Network_Strategies Chicago-area Consultant. Installs CICS, MVS, OS/390, and z/OS. Systems programming of mainframe products: maintain, tune, audit, strategize, and advise. |
| Best_Customer_Solutions Specialists in maintaining, upgrading and enhancing mainframe systems software. Including several formalized, field-tested service offerings. |
| BETA_Services Specializes in maintaining mainframe applications, either on-site in the Philadelphia to New York City corridor, or telecommuting anywhere in the world. |
| Blue_True_Software Lars Ritzman's Swedish consulting firm offering z/OS systems programming, specializing in IMS. |
| Bridgestone_Firestone_Information_Services_(BFIS) Facilities management, outsourcing, systems programming, application performance tuning and disaster recovery services. Subsidiary of the tire manufacturer. |
| Cassidy_IT_Services European z/VM, z/Linux, z/OS, VSE/ESA, CICS/TS, mainframe and Websphere systems consultancy. |